// license:BSD-3-Clause // copyright-holders:Olivier Galibert #ifndef MAME_SOUND_MAS3507D_H #define MAME_SOUND_MAS3507D_H #pragma once #define MINIMP3_ONLY_MP3 #define MINIMP3_NO_STDIO #include "minimp3/minimp3.h" class mas3507d_device : public device_t, public device_sound_interface { public: // construction/destruction mas3507d_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0); auto sample_cb() { return cb_sample.bind(); } int i2c_scl_r(); int i2c_sda_r(); void i2c_scl_w(bool line); void i2c_sda_w(bool line); u32 get_frame_count() const { return total_frame_count - buffered_frame_count; } protected: virtual void device_start() override; virtual void device_reset() override; virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override; private: devcb_read16 cb_sample; enum { IDLE, STARTED, NAK, ACK, ACK2 } i2c_bus_state; enum { UNKNOWN, VALIDATED, WRONG } i2c_bus_address; std::array mp3data; std::array samples; bool i2c_scli, i2c_sclo, i2c_sdai, i2c_sdao; int i2c_bus_curbit; uint8_t i2c_bus_curval; int mp3_count, sample_count, current_rate; u32 total_frame_count, buffered_frame_count; mp3dec_t mp3_dec; mp3dec_frame_info_t mp3_info; sound_stream *stream; void i2c_nak(); bool i2c_device_got_address(uint8_t address); void i2c_device_got_byte(uint8_t byte); void i2c_device_got_stop(); enum { UNDEFINED, CONTROL, DATA_READ, DATA_WRITE, BAD } i2c_subdest; enum { CMD_BAD, CMD_RUN, CMD_READ_CTRL, CMD_WRITE_REG, CMD_WRITE_MEM, CMD_READ_REG, CMD_READ_MEM } i2c_command; int i2c_bytecount; uint32_t i2c_io_bank, i2c_io_adr, i2c_io_count, i2c_io_val; void mem_write(int bank, uint32_t adr, uint32_t val); void run_program(uint32_t adr); void reg_write(uint32_t adr, uint32_t val); void fill_buffer(); void append_buffer(stream_sample_t **outputs, int &pos, int samples); }; // device type definition DECLARE_DEVICE_TYPE(MAS3507D, mas3507d_device) #endif // MAME_SOUND_MAS3507D_H